Temperature and pressure reduction stable heat supply device

Abstract

The utility model relates to the technical field of waste heat recovery of thermal power plants, and discloses a temperature and pressure reducing stable heat supply device which comprises a conveying pipe and a steam pipe, the steam pipe is fixedly installed on the inner wall of the conveying pipe, a plurality of sets of steam spray holes are formed in the steam pipe, and the steam spray holes are communicated with the conveying pipe. A water tank is fixedly installed on the outer wall of the conveying pipe, a water pump is fixedly installed on the outer wall of the water tank, the water pumping end of the water pump communicates with the interior of the water tank, a connecting pipe is fixedly installed at the water drainage end of the water pump, and the end, away from the water pump, of the connecting pipe penetrates through the conveying pipe and is fixedly provided with an annular pipe. High-pressure steam sprayed out of the steam pipe through the steam spraying holes can impact the impeller, then the impeller drives the sleeve to rotate, water mist sprayed out of the atomization spray head can be scattered through rotation of the sleeve in cooperation with the rotating shaft and the spoiler, the coverage range of the water mist is expanded, and the temperature reduction effect of the water mist on high-heat and high-pressure steam is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery in thermal power plants, in particular to a stable heating device capable of reducing temperature and pressure. Background Art

[0002] When a thermal power plant uses high-temperature and high-pressure steam in a steam turbine to spin a generator to generate electricity, the steam after spinning is not effectively utilized, resulting in a large amount of steam waste heat being wasted. Utilizing steam waste heat can save energy and reduce production costs.

[0003] According to the disclosed stable heating device with cooling and pressure reduction (publication number: CN213513857U), the steam sprayed from the steam nozzle of the cooling device in the above application is mixed with the atomized water sprayed from the rotary atomizer, so that the steam cooling effect is obvious. By changing the speed of the variable frequency water pump and adjusting the amount of atomized water sprayed from the rotary atomizer, the steam temperature is adjusted.

[0004] The device mainly relies on the water mist sprayed by the rotary atomizer to reduce the steam temperature. However, the range of the water mist sprayed by the rotary atomizer is limited, while the temperature of the steam is usually relatively high and the pressure is relatively large, so the sprayed water mist cannot be fully mixed with the steam, and the cooling effect is general. Utility Model Content

[0005] The purpose of the utility model is to provide a stable heating device with reduced temperature and pressure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stable heating device with temperature reduction and pressure reduction, comprising a delivery pipe and a steam pipe, the steam pipe is fixedly installed on the inner wall of the delivery pipe, a plurality of steam spray holes are provided on the steam pipe, a water tank is fixedly installed on the outer wall of the delivery pipe, a water pump is fixedly installed on the outer wall of the water tank, the water pumping end of the water pump is connected with the inside of the water tank, a connecting pipe is fixedly installed on the drainage end of the water pump, an annular pipe is fixedly installed through the delivery pipe at one end of the connecting pipe away from the water pump, a plurality of atomizing nozzles are fixedly installed on the outer wall of the annular pipe, a flow disturbance mechanism for improving the diffusion range of water mist is provided on the steam pipe, the water mist sprayed by the atomizing nozzle can be dispersed by providing the flow disturbance mechanism, and the coverage range of the water mist can be expanded, an auxiliary mechanism is provided on the steam pipe, and the effect of water mist temperature reduction can be further improved by providing the auxiliary mechanism, and the flow disturbance mechanism comprises:

[0007] A sleeve, one end of which is rotatably connected to the outer wall of the steam pipe, and the other end of which is fixedly provided with an impeller, and the sleeve can be driven to rotate by the impeller;

[0008] A rotating shaft, the rotating shaft is rotatably connected to the inner wall of the sleeve, and the rotating shaft passes through the sleeve;

[0009] The spoiler is fixedly installed on the top of the rotating shaft. The water mist sprayed by the atomizing nozzle can be dispersed by arranging the spoiler, thereby expanding the coverage of the water mist.

[0010] Preferably, the auxiliary mechanism comprises a connecting rod, one end of which is fixedly mounted on the outer wall of the conveying pipe, and the other end of which is fixedly mounted with a large bevel gear.

[0011] Preferably, a small bevel gear is fixedly mounted on the bottom of the rotating shaft.

[0012] Preferably, the small bevel gear is meshed with the large bevel gear, and the rotating shaft can be driven to rotate by arranging the large bevel gear to cooperate with the small bevel gear.

[0013] Preferably, the connecting pipe is fixedly connected to the penetration point of the conveying pipe, and the interior of the connecting pipe is communicated with the interior of the annular pipe.

[0014] Preferably, the interior of the annular tube is communicated with the interior of the atomizing nozzle.

[0015] Compared with the prior art, the utility model provides a stable heating device with reduced temperature and pressure, which has the following beneficial effects:

[0016] 1. In the stable heating device with temperature reduction and pressure reduction, the high-pressure steam ejected from the steam pipe through the steam nozzle will impact the impeller, thereby causing the impeller to drive the sleeve to rotate. The rotation of the sleeve in conjunction with the rotating shaft and the spoiler can disperse the water mist ejected from the atomizing nozzle, thereby expanding the coverage of the water mist and improving the temperature reduction effect of the water mist on the high-temperature and high-pressure steam.

[0017] 2. The stable heating device with temperature reduction and pressure reduction drives three sets of rotating shafts to rotate through the sleeve, and at the same time cooperates with the large bevel gear and the small bevel gear to make the rotating shaft rotate, so that the spoiler can rotate while making a circular motion around the sleeve, so that the spoiler can fully disperse the water mist, further improving the cooling effect of the water mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model as a whole from the side;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model as a whole;

[0021] Figure 4 It is a schematic diagram of the overall structure of the sleeve of the utility model;

[0022] Figure 5 For this utility model Figure 3 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. delivery pipe; 2. water tank; 3. water pump; 4. connecting pipe; 5. annular pipe; 6. atomizing nozzle; 7. steam pipe; 8. steam spray hole; 9. spoiler mechanism; 91. sleeve; 92. rotating shaft; 93. impeller; 94. spoiler; 10. auxiliary mechanism; 101. connecting rod; 102. large bevel gear; 103. small bevel gear. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a stable heating device with reduced temperature and pressure, comprising a delivery pipe 1 and a steam pipe 7, the steam pipe 7 is fixedly installed on the inner wall of the delivery pipe 1, a plurality of steam spray holes 8 are provided on the steam pipe 7, a water tank 2 is fixedly installed on the outer wall of the delivery pipe 1, a water pump 3 is fixedly installed on the outer wall of the water tank 2, the water pumping end of the water pump 3 is communicated with the interior of the water tank 2, a connecting pipe 4 is fixedly installed on the drainage end of the water pump 3, an annular pipe 5 is fixedly installed on the end of the connecting pipe 4 away from the water pump 3 passing through the delivery pipe 1, the connecting pipe 4 is fixedly connected to the penetration point of the delivery pipe 1, the interior of the connecting pipe 4 is communicated with the interior of the annular pipe 5, and a plurality of atomizing nozzles are fixedly installed on the outer wall of the annular pipe 5. 6. Water mist is sprayed through the atomizing nozzle 6 to cool the high-temperature and high-pressure steam inside the delivery pipe 1. The interior of the annular pipe 5 is connected with the interior of the atomizing nozzle 6. The water pump 3 is started to pump the water inside the water tank 2 into the interior of the connecting pipe 4, and the water is discharged into the interior of the annular pipe 5 through the connecting pipe 4. Finally, water mist is sprayed through the atomizing nozzle 6. A spoiler mechanism 9 for increasing the diffusion range of the water mist is provided on the steam pipe 7. The spoiler mechanism 9 can be used to disperse the water mist sprayed from the atomizing nozzle 6, expand the coverage of the water mist, and improve the cooling effect of the water mist on the high-temperature and high-pressure steam. An auxiliary mechanism 10 is provided on the steam pipe 7. The auxiliary mechanism 10 can be used to further improve the cooling effect of the water mist.

[0025] The above-mentioned spoiler mechanism 9 includes a sleeve 91, a rotating shaft 92, an impeller 93, and a spoiler 94; one end of the sleeve 91 is rotatably connected to the outer wall of the steam pipe 7, and the impeller 93 drives the sleeve 91 to rotate synchronously. At the same time, the sleeve 91 will drive the three sets of rotating shafts 92 to rotate synchronously, and the three sets of rotating shafts 92 drive the three sets of spoilers 94 to make circular motion around the sleeve 91. The other end of the sleeve 91 is fixedly installed with the impeller 93. When the steam pipe 7 transports high-pressure steam to the inside of the delivery pipe 1 through the steam nozzle 8, the high-pressure steam will impact the impeller 93, thereby causing the impeller 93 to rotate. The rotating shaft 92 is rotatably connected to the inner wall of the sleeve 91, and the rotating shaft 92 passes through the sleeve 91. The spoiler 94 is fixedly installed on the top of the rotating shaft 92. The water mist sprayed by the atomizing nozzle 6 can be dispersed by the rotation of the three sets of spoilers 94, thereby expanding the coverage of the water mist and improving the cooling effect of the water mist on the high-temperature and high-pressure steam.

[0026] The above-mentioned auxiliary mechanism 10 includes a connecting rod 101, a large bevel gear 102, and a small bevel gear 103; one end of the connecting rod 101 is fixedly installed on the outer wall of the conveying pipe 1, and the other end of the connecting rod 101 is fixedly installed with a large bevel gear 102, and the bottom of the rotating shaft 92 is fixedly installed with a small bevel gear 103. When the sleeve 91 drives the three sets of rotating shafts 92 to rotate, the rotating shaft 92 will drive the small bevel gear 103 to make a circular motion around the connecting rod 101, and make the small bevel gear 103 fit in the tooth groove of the large bevel gear 102 and roll. The small bevel gear 103 is meshed with the large bevel gear 102. When the small bevel gear 103 fits in the tooth groove of the large bevel gear 102 and rolls, the small bevel gear 103 will drive the rotating shaft 92 to rotate, and then the rotating shaft 92 drives the spoiler 94 to rotate.

[0027] Working principle: When the steam pipe 7 transports high-pressure steam to the inside of the delivery pipe 1 through the steam nozzle 8, the high-pressure steam will impact the impeller 93, thereby causing the impeller 93 to rotate, so that the impeller 93 drives the sleeve 91 to rotate synchronously. At the same time, the sleeve 91 will drive the three sets of rotating shafts 92 to rotate synchronously, and the three sets of rotating shafts 92 drive the three sets of spoilers 94 to make circular motion around the sleeve 91. At the same time, the water pump 3 is started to pump the water inside the water tank 2 into the inside of the connecting pipe 4, and discharge it into the inside of the annular pipe 5 through the connecting pipe 4. Finally, water mist is sprayed through the atomizing nozzle 6 to cool the high-temperature and high-pressure steam inside the delivery pipe 1. At the same time, the water mist sprayed by the atomizing nozzle 6 can be dispersed through the rotation of the three sets of spoilers 94, thereby expanding the coverage of the water mist and improving the cooling effect of the water mist on the high-temperature and high-pressure steam.

[0028] When the sleeve 91 drives the three sets of rotating shafts 92 to rotate, the rotating shaft 92 will drive the small bevel gear 103 to make a circular motion around the connecting rod 101, and make the small bevel gear 103 fit in the tooth groove of the large bevel gear 102 and roll. At this time, under the meshing action of the small bevel gear 103 and the large bevel gear 102, the small bevel gear 103 will drive the rotating shaft 92 to rotate, and then the rotating shaft 92 drives the spoiler 94 to rotate, so that the spoiler 94 can rotate while making a circular motion around the sleeve 91, so that the spoiler 94 can fully disperse the water mist, further improving the cooling effect of the water mist.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A stable heating device with reduced temperature and pressure, comprising a delivery pipe (1) and a steam pipe (7), wherein the steam pipe (7) is fixedly mounted on the inner wall of the delivery pipe (1), and a plurality of steam spray holes (8) are provided on the steam pipe (7), characterized in that: A water tank (2) is fixedly mounted on the outer wall of the delivery pipe (1), a water pump (3) is fixedly mounted on the outer wall of the water tank (2), a water pump (3) is connected to the inside of the water tank (2) at the pumping end of the water pump (3), a connecting pipe (4) is fixedly mounted on the drainage end of the water pump (3), an annular pipe (5) is fixedly mounted on the end of the connecting pipe (4) away from the water pump (3) passing through the delivery pipe (1), a plurality of groups of atomizing nozzles (6) are fixedly mounted on the outer wall of the annular pipe (5), a flow disturbing mechanism (9) for increasing the diffusion range of water mist is arranged on the steam pipe (7), an auxiliary mechanism (10) is arranged on the steam pipe (7), and the flow disturbing mechanism (9) comprises: A sleeve (91), one end of the sleeve (91) is rotatably connected to the outer wall of the steam pipe (7), and the other end of the sleeve (91) is fixedly mounted with an impeller (93); A rotating shaft (92), wherein the rotating shaft (92) is rotatably connected to the inner wall of the sleeve (91), and the rotating shaft (92) passes through the sleeve (91); A spoiler (94) is fixedly mounted on the top of the rotating shaft (92).

2. The stable heating device with reduced temperature and pressure according to claim 1, characterized in that: The auxiliary mechanism (10) comprises a connecting rod (101), one end of the connecting rod (101) is fixedly mounted on the outer wall of the conveying pipe (1), and the other end of the connecting rod (101) is fixedly mounted with a large bevel gear (102).

3. The stable heating device with reduced temperature and pressure according to claim 1, characterized in that: A small bevel gear (103) is fixedly mounted on the bottom of the rotating shaft (92).

4. The stable heating device with reduced temperature and pressure according to claim 3, characterized in that: The small bevel gear (103) is meshed with the large bevel gear (102).

5. The stable heating device with reduced temperature and pressure according to claim 1, characterized in that: The connecting pipe (4) is fixedly connected to the penetration point of the conveying pipe (1), and the interior of the connecting pipe (4) is communicated with the interior of the annular pipe (5).

6. The stable heating device with reduced temperature and pressure according to claim 1, characterized in that: The interior of the annular tube (5) is communicated with the interior of the atomizing nozzle (6).

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